Pad Mounted Transformer
Yawei's 750kV, 500kV, 400kV, 330kV, 220kV, and 110kV ultra-high voltage transformers, as well as various dry-type transformers, oil-immersed transformers, and amorphous alloy transformers of 35kV and below, are meticulously designed, engineered, and rigorously tested, fully complying with the highest international industry standards, including IECC, TUV, UL, CE, KEMA, and GOST certifications.
The delivery time for main transformers is only 60 days, distribution transformers 20 days, dry-type transformers 15 days, and U-type transformers 30 days. This exceptional delivery speed helps customers seize market opportunities.
Product Scope
15 kVA - 10,000 kVA base
Up to 35kv
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Product Advantages
Thre-phase pad-mounted transformers are compact power centers forutility, commercial,o industrial applications and are designed to withstandmany types of environments. The product has the structural characteristics of compact miniaturization, full insulation design, good sealingperformance, strong ant-corrosion ability, and flexible combination. These transformers can be located outside or inside a building to provide anenergy-eficient and safer solution. Fluid-flle transformers are available in a variety of configurations and can be paired with a wide range of accesso-ries to meet the most basic and complex specifications.With its unique advantages,three-phase pad-mounted transformer has been widely used inmany fields.
The single-phase pad-mounted transformer is rated at 15-250KVA. Single-phase pad-mounted transformer is generally used in places wheresingle-phase power supply is needed for civil use, such as household apliances,et.,and its capacity is smaller than that of three-phase pad-mount-ed transformers.
Types of Pad Mounted Transformer
Categorization by Configuration
Loop Feed: Features six high-voltage bushings, allowing underground cables to connect and "loop" back out to the next unit. This offers high reliability; if a cable fails, utilities can reroute power from the opposite direction.
Radial Feed: Features three high-voltage bushings and sits at the terminal end of a single supply line. It is simpler and cheaper upfront, but a cable fault causes an immediate blackout until repaired.
Categorization by Phase
Single-Phase: Ratings range from $10\text{ kVA}$ to $167\text{ kVA}$. They feature compact, low-profile cabinets designed for residential neighborhoods and small developments.
Three-Phase: Ratings range from $45\text{ kVA}$ to $5000\text{ kVA}+$. These large, heavy-duty cabinets power commercial complexes, hospitals, data centers, and industrial plants.
Bushing Style
Dead Front: High-voltage connections are fully insulated and shielded. No energized parts are exposed, making it safer for technicians.
Live Front: High-voltage connections feature exposed, bare terminals requiring specialized hot-stick tools for maintenance.
Residential Neighborhoods: Modern suburbs and master-planned communities favor pad-mounted transformers over pole-mounted ones to eliminate overhead visual clutter and protect the local power grid from storm-damaged falling branches.
Commercial and Retail Parks: Shopping malls, office buildings, and hotels rely heavily on three-phase units. Because these locations experience high pedestrian traffic, the secure, tamper-proof enclosure is critical.
Industrial Facilities: Light-to-medium industrial plants use large-capacity pad-mounted transformers to step down medium voltage directly outside the building, driving heavy machinery and manufacturing equipment.
Institutional Campuses: Universities, large hospital complexes, and data centers rely on them to cleanly route massive underground power networks without disturbing campus aesthetics.
How To Custom Power Transformer Process at Yawei?
Initial Consultation
Our customization process begins with an in-depth consultation to understand your specific needs. During this phase, we discuss your technical requirements, the application environment, and any special features you may need in your transformers. This consultation helps us gather all the necessary information to design a transformer that perfectly meets your requirements.
Design and Prototyping
Based on initial consultation, our engineering team designs a prototype that meets your specifications. This stage involves rigorous testing and validation to ensure the prototype performs as expected. We use advanced design software and simulation tools to create accurate models and test them under various conditions.
Material Selection
Choosing the right materials is crucial for the performance and durability of the transformer. We carefully select high-quality materials that match the specific needs of your application. Our team considers factors such as thermal stability, electrical conductivity, and mechanical strength to ensure the materials used will provide optimal performance.
Production and Quality Control
Once the prototype is approved, we move into full-scale production. Our production process is highly efficient and incorporates stringent quality control measures at every stage. We conduct various tests, including electrical, thermal, and mechanical tests, to ensure each transformer meets our high standards.
Testing and Validation
Before the final product is delivered, it undergoes comprehensive testing and validation. We simulate real-world operating conditions to ensure the transformer will perform reliably in its intended environment. This thorough testing process helps us catch any potential issues before they become problems, ensuring the highest quality for our customers.
Delivery and after-sale Support
Timely delivery is crucial, and we pride ourselves on our efficient production and logistics processes. We ensure that your order is delivered on time and in perfect condition. Additionally, our customer support team is always available to assist with any post-delivery questions or issues, ensuring complete satisfaction.
Value-Added Services
At Yawei Transformer, we strive to provide a comprehensive solution that goes beyond just the transformer itself. We offer value-added services such as custom labeling, packaging, and documentation to meet your specific needs.
Whether you require specialized labeling for identification or traceability purposes, or you need customized packaging solutions for safe transportation and storage, we have the capabilities to accommodate your requests.
Global Reach and Customer Support
As a leading custom power transformer manufacturer in China, we have established a strong global presence, serving customers across Europe, North America, Russia, Uzbekistan, Mexico, and many other regions. Our extensive customer base is a testament to our commitment to quality, reliability, and exceptional customer service.
Our Factory
Yawei Group has over 3000 employeesincluding more than 300 engineering and technical personel.The company covers an area of more than 1200 mu(80 hectares)and has a sales revenue of about 6 billion yuan in 2025.Among them,Jiangsu Yawei Transformer Co Ltd.has an annual sales revenue of over2 billion yuan.Jiangsu Yawei Transformer Co,Ltd.has been awarded the titles of National High tech Enterprise,National Specialized and Innovative "LittleGiant"Enterprise,Jiangsu Province High quality Development Technology Innovation Enterprise,Jiangsu Province Quality Trustworthy Enterprise,JiangsuProvince Famous Brand Enterprise,Jiangsu Province Quality integrity Five Star Enterprise,Provincial Five Star Cloud Enterprise,Nantong City AdvancedCollcie for Contract Abiding and Creditworthiness,Nantong City Science and Technology Progress Award,Nantong city Excellent Private Enterprise,Nantong City Civilized Unit.Nantong City Top 100 Private Enterprises,Hai'an City Industrial Growth Enterprise,Hai'an City Top 20 Industrial Enterprises,Hai'an City Top 10 High tech Enterprises,Hai'an City Quality Model Enterprise,and Hai'an City Mayor's Quality Award.
The company has strong production capacity and aneficient marketing team.The products include 500kv,400kV,330kV,220kv,and 110kV ultra-highvoltage transformers,various dry-type transformers/oil immersed transformers/amorphous alloy transformers of 35kV and below,new energy transform-ers,and prefabricated substations,Export series:single-phase transformer,three-phase transformer,cylindrical transformer,isolation transformer,controltransformer,voltage regulator and other products,And various specifications of special transformers such as grounding transformers,arc suppressioncois,Bitcoin transformers,prefabricated cabins,eactors,electric furnace transformers,rectifier transformers,mining transformers,marine transformers,etc.All eries of products of the company have passed the routine,type,and specil tests of the National Transformer Quality Supervision and IlnspectionCenter,Wuhan Branch of China Electric Power Research Institute,and Suzhou Electric Science Research institute.The enterprise has successively passedISO9001,ISO14001,ISO45001,SA8000 system certification,Jiangsu Province Enterprise Metrology Qualification Certification.At the same time,10kV and35KV level distribution transformers and box type substations have obtained international Electrotechnical Commission IEC certification,US UL certifica-tion,German TUV certification,EU CE cetification,Dutch KEMA certifcation,and GOST certification.Our product sales cover the global market,inluding123 countries and regions such as the United States,Europe,Canada.Mexico.etcIn 2025,our company sucesfully delivered the domestically pioneering fully-insulated ultra-high-voltage (UHV)large-capacity transformer(250MVA/345kV),which has been put into operation at the world's largest Alcomputing power center.Meanwhile,the construction of our UHV 765KV transformer manufacturing plant(scheduled for completion in October 2026)marks our imminent entry into the first tier of UHV equipmentmanufacturing and testing sectors,further consolidating our competitiveness in the globalmarket.
Electrical Steel Cut-to-Length Line
Automatic Core Stacking Robot System
Lamination Core
Paper Wrapping Machine
Winding Procedure
Transformer Assembly Operation
Our Products
Factory Acceptance Test
Test Station
Certifications
After-sales service
Warranty
Transformers typically come with a minimum two-year warranty (some products offer a one-year "three-guarantee" service – repair, replacement, and return). Warranty coverage usually includes performance issues caused by manufacturing defects and non-human factors. Extended warranties are also available.
Repair and Maintenance
We have a comprehensive after-sales service system capable of immediately resolving any product problems and ensuring equipment is back in operation. Services include on-site repair and ongoing maintenance support.
On-site Operation and Maintenance Support
We actively collaborate with customers to manage the operation and maintenance of transformers. We can provide guidance and assistance on-site.
After-sales Contact Information
Tel: +8615371741198
Email: peter@yaweitransformer.com
Address: No. 265, Huanghai Avenue West, Hai'an City, Jiangsu Province, China
FAQ
Jiangsu Yawei Transformer Co.,Ltd. is one of the most professional pad mounted transformer manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade pad mounted transformer made in China here from our factory.
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